Quiz 4

Question 10 Listen Which of the following correctly identifies the hardened rings of mineralized tis- sue shown in this histology slide? Gray and white concentric ringed tissue with a canal in the center of each ring Some types of connective tissue contain minerals that make the tissue strong. A B C D compact bone elastic cartilage neurons cardiac muscle

Choose the incorrect statement about skeletal muscle.   Question 3 options:   Skeletal muscle is made from thousands of muscle fibres running along the length of the muscle.   Each myofibril contains repeating patterns of sarcoplasmsic reticulum, giving muscle tissue its typical striated pattern.   Each individual fibre in a muscle is a single cell containing multiple nuclei.   Within in each fibre, there are longitudinal myofibrils made up from thin and thick filaments.

please please answer super super fast try to answer all questions For Simple Columnar Epithelium What evidence is there that this is epithelium? How does the structure fit the function? 1st Way: 2nd Way:   For Stratified Squamous Epithelium How does the structure fit the function? 1st Way: 2nd Way:

Please help me solve question 1 and 2.

QUESTION 1 Arrange the three types of muscle from the one in which the calcium that causes contraction comes mostly from outside the cell to the one in which the calcium that causes contraction comes mostly from inside the cell. smooth, skeletal, cardiac smooth, cardiac, skeletal skeletal, cardiac, smooth cardiac, smooth, skeletal skeletal, smooth, cardiac cardiac, skeletal, smooth

Select the best answer or answers from the choices given: Myoglobin has a special function in muscle tissue. It (a) breaks down glycogen, (b) is a contractile protein, (c) holds a reserve supply of oxygen in the muscle

Match the following asap

Please help me solve question 1.

Complete the following statements about the structure of the different muscle types. Not all choices will be used.

Can you match the sacromere anatomy with the proper answer from the list below the table graph? Sarcomere Anatomy Description/Reaction Thin Filaments ? Thick Filaments  ? A Band  ? I Band ? M Line ? H Zone ? Z Disc ? A) G-Actin, F-Actin, Troponin, Tropomyosin B) Myosin C) Bisected by the M Line, this area shows only the thick filaments without any thin filamentous overlap D) The point of origin for myosin filaments found in the center of the sarcomere E) An area in the center of the sarcomere marked by the entire length of the thick filaments F) A space between sarcomeres with the z-disc in the center; this region shows Actin's anchorage points and extension without myosin overlap G) Anchoring point for the thin filaments

Question 21 54. Identify the specific type of tissue in the field of view. 55. Identify 2 characteristics of the tissue in the field of view.

QUESTION 6 Identify the specific kind of muscle in the image. cardiac muscle smooth muscle O skeletal muscle

Answer the following multiply choice questions don't need to explain?    a. Which of the following is NOT a function of the skeletal system? A. Permanently absorbs minerals for strength to protect organs (Maybe) B. Facilitates movement with joints allowing different degrees of movement C. Stores and releases fat D. Supports the body with bone tissue capable of withstanding stress b. This type of skin cancer is the most fatal of all skin cancers due to the high rate of metastasis. It is characterized by uncontrolled growth of the pigment producing cells of the skin, thus usually developing from a mole already present on the skin. A. Basal cell carcinoma B. Sarcoma C. Melanoma D. Squamous cell carcinoma   c. What kind of tissue is produced first during long bones formation and then replaced by bone tissue? A. fibrocartilage B. elastic connective tissue C. dense fibrous connective tissue D. hyaline cartilage (Maybe)   d. Which of the following is a bone marking name that indicates a hole…

Which of the following statements can CORRECTLY be made about muscle tissue? 1. The main characteristic of muscle tissue is its ability to contract, or shortens, making movement possible. II. Skeletal muscle fibers appear banded, with many cells at the periphery and under involuntary control. II. Cardiac muscle cells are cylindrical, not striated, and have a centrally located nucleus and under involuntary IV. Smooth muscle cells are tapered at each end, are not striated, and have a single control. nucleus and under involuntary control. O Statements I and IV are correct O Statements I, II, IV are correct O Statements 1, II, HI, and IV are correct O Statements II and II are correct 21 22 23 24 25 26 27 28 29 30

QUESTION 9 Which of the following is true about skeletal, smooth and cardiac muscle? OA. They are all striated. B. They all have varicosities. C. They are all multinucleated. O D. They all have actin and myosin. W

Please help in answering this question - more than one answer may be correct: Cardiac muscle conducts myogenic signal in a manner similar to A) parasympathetic neurons B) single-unit smooth muscle C) motor neurons D) skeletal muscle E) multi-unit smooth muscle

Question 1. Describe an action potential in a muscle fiber in detail, know the changes in voltage starting from RMP. Question 2. What is the voltage that causes the sarcoplasmic reticulum to release calcium ions into the cell? Which integral membrane protein is responsible Question 3.What happens to a muscle fiber’s membrane (sarcolemma) once the motor neuron releases theneurotransmitter listed above? What is the change in voltage in the motor end plate? Question 4. Describe how is acetylcholine (neurotransmitter) is released from the synaptic knobs of motor neurons and how it activatesskeletal muscle. Please please please help with these questions, so so srry I know its a lot i am just really stuck! Thank youuuuuu.

Matching between column I and corresponding definition or function in column II

- Part A Which of the following is composed of multiple layers of cells? pseudostratified columnar epithelium O simple squamous epithelium O simple columnar epithelium transitional epithelium Submit Request Answer

in a histological examination, you have the following tissue specimens: (1) Intervertebral disks and symphysis pubis; (2) tendons and ligaments; and (3) tissues from the inner spleen and lymph nodes. How will you categorize these specimens, respectively? O Hyaline, dense regular collagenous, reticular O Fibrocartilage, dense regular collagenous, reticular O Hyaline, dense irregular collagenous, reticular O Elastic cartilage, dense regular collagenous, reticular O Fibrocartilage, dense irregular collagenous, reticular 27 28 29 30 31 32 33 34 35 3

Select the best answer or answers from the choices given: The smooth muscle type found in the walls of digestive and urinary system organs and that exhibits gap junctions and pacemaker cells is (a) multi unit, (b) unitary.

A typical tissue is 20 cm, with 4 cm of bone and 16 cm of muscle. With an incident x-ray energy of 70 kEV, the half layer values for muscle and bone are 3.5 and 1.8 cm respectively. What percentage of x-rays are transmitted through the tissue?

Correct answer will be appreciated

Select the best answer or answers from the choices given: An epithelium that has several layers, with an apical layer of flattened cells, is called (choose all that apply): (a) ciliated, (b) columnar, (c) stratified, (d) simple, (e) squamous.

Item 30 Item 30 The iris of the eye is composed of nonstriated muscle that is involuntarily controlled. Therefore, it must contain Multiple Choice skeletal muscle. multiunit smooth muscle. single-unit smooth muscle. cardiac muscle.

Match each item in column A with the most closely related item in column B.

Hyaline Cartilage, Fibrocartilage, Blood, elastic Cartilage, Bone (Osseous)

The cell in the center of the electron micrograph above is important in wound healing and plays a role in the pathological process underlying Dupuytren's contracture. Which of the following cell types is depicted? A. Endothelial cell B. Myoepithelial cell C. Myofibroblast D. Pericyte E. Smooth muscle cell

Smooth muscle differs from skeletal muscle in: (more than one answer may be correct)Question 6 options:   the source of calcium needed for contraction   that smooth muscle has no transverse tubules   that smooth muscle does not use calcium to begin contractions   that smooth muscle does not use myosin to bind to actin   the non-parallel arrangement of sarcomeres, resulting in no striations

Question 9 Identify this tissue. Histulagy Lab Part Slide 2 iacuna Caraicul lamela compact bone blood adipose tissue cartilage loose connective tissue